125778337 has 2 divisors, whose sum is σ = 125778338. Its totient is φ = 125778336.

The previous prime is 125778287. The next prime is 125778361. The reversal of 125778337 is 733877521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65545216 + 60233121 = 8096^2 + 7761^2 .

It is a cyclic number.

It is not a de Polignac number, because 125778337 - 2²³ = 117389729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125778293 and 125778302.

It is not a weakly prime, because it can be changed into another prime (125778137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62889168 + 62889169.

It is an arithmetic number, because the mean of its divisors is an integer number (62889169).

Almost surely, 2^125778337 is an apocalyptic number.

It is an amenable number.

125778337 is a deficient number, since it is larger than the sum of its proper divisors (1).

125778337 is an equidigital number, since it uses as much as digits as its factorization.

125778337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 246960, while the sum is 43.

The square root of 125778337 is about 11215.0941592124. The cubic root of 125778337 is about 501.0356361014.

The spelling of 125778337 in words is "one hundred twenty-five million, seven hundred seventy-eight thousand, three hundred thirty-seven".